Combo Models push the limits of K'NEX creativity by combining pieces from multiple sets to construct new, often larger-scale designs. These models might mix themes like adding moving parts to structures, or combining ride components with robotic elements.They are an excellent way to extend the life of your collection and create models that would not be possible with a single set. Combo Models are especially popular with seasoned builders who have accumulated parts over time and want to stretch their design thinking.Whether you are blending two kits or five, these models inspire deep problem-solving and offer nearly unlimited possibilities.